Study on the stability of bucket foundation revetment under different backfill materials: Based on geotechnical centrifugal model test
Study on the stability of bucket foundation revetment under different backfill materials: Based on geotechnical centrifugal model test
The bucket foundation structure is a lightweight, thin-walled, multi-compartment structure suitable for muddy sea areas. When used as a revetment, this structure primarily is subjicted to backfill loads and involves complex bucket-soil interaction. This study investigates the stability of bucket foundation revetments under different backfill materials through geotechnical centrifuge model tests. The results indicate that the bucket foundation revetment satisfies the stability requirements under all test conditions. During backfilling inside the bucket, the main structural displacement was settlement, with resistance at the bottom of the bucket and friction on the inner wall being the dominant resistive forces. During backfilling on the landside, the structural displacement was significantly influenced by the vertical load sharing ratio between the bucket and the soil. When backfilled with soft clay, the structure predominantly experienced sliding towards the seaside, with the soil on the seaside of the lower bucket providing substantial resistance. When backfilled with standard sand and block stone, the bucket mainly tilted towards the landside, with the soil near the landside at the bottom and within the compartments offering greater resistance. The results of this study will provide a reference for the design and construction of backfilling for bucket foundation revetments.
Yun Guan; X. Han; Z. Pan
11th International Conference on Physical Modelling in Geotechnics (ICPMG2026)
Session 6: Onshore and offshore foundation systems
https://doi.org/10.53243/ICPMG2026-51